Bump groovy from 2.5.7 to 3.0.8

Bumps [groovy](https://github.com/apache/groovy) from 2.5.7 to 3.0.8.
- [Release notes](https://github.com/apache/groovy/releases)
- [Commits](https://github.com/apache/groovy/commits)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -428,7 +428,7 @@
             <dependency>
                 <groupId>org.codehaus.groovy</groupId>
                 <artifactId>groovy</artifactId>
-                <version>2.5.7</version>
+                <version>3.0.8</version>
                 <scope>test</scope>
             </dependency>
             <dependency>